R rated sci-fi books

5467 books

Sci-fi books with mature content including explicit sex, graphic violence, or strong language. For adult readers.

Heroics
Heroics
George Alec Effinger
R
Intervention
Intervention
Julian May
R
1968
1968
Joe Haldeman
R
The Secret of Life
The Secret of Life
Rudy Rucker
R
The Zork Chronicles
The Zork Chronicles
George Alec Effinger
R
The End of the Age
The End of the Age
Pat Robertson
R
Man the Fugitive
Man the Fugitive
George Alec Effinger
R
House of Shards
House of Shards
Walter Jon Williams
R
Motherfuckers: The Auschwitz of Oz
Motherfuckers: The Auschwitz of Oz
David Britton
R
Helliconia Winter
Helliconia Winter
Brian W. Aldiss
R
Queen Bitch
Queen Bitch
Michael Anderle
R
The Last American Vampire
The Last American Vampire
Seth Grahame-Smith
R
Inside the Walls of Troy
Inside the Walls of Troy
Clemence McLaren
R
The Defiance
The Defiance
Bill Baldwin
R
Under the Eye of God
Under the Eye of God
David Gerrold
R
Silo and the Rebel Raiders
Silo and the Rebel Raiders
V. Peyton
R
Half the Day Is Night
Half the Day Is Night
Maureen F. McHugh
R
The Stars Must Wait
The Stars Must Wait
Keith Laumer
R
The Tyrant of Hades
The Tyrant of Hades
Colin Kapp
R
Gods of the Game #3: A Sci-Fi LitRPG Adventure
Gods of the Game #3: A Sci-Fi LitRPG Adventure
Phil Tucker
R
Glimpses
Glimpses
Lewis Shiner
R
Body Horror
Body Horror
Joshua Rettew
R
Dagger's Point
Dagger's Point
Anne Logston
R
Forever Free
Forever Free
Joe Haldeman
R
The Island Under the Earth
The Island Under the Earth
Avram Davidson
R
Fools
Fools
Pat Cadigan
R
First Channel
First Channel
Jean Lorrah; Jacqueline Lichtenberg
R
Fuzzies and Other People
Fuzzies and Other People
H. Beam Piper
R
Pollen
Pollen
Jeff Noon
R
A Gathering Evil
A Gathering Evil
Michael A. Stackpole
R